Home / 15,055.95-20,777.39-8,341.69

Finding the Fourth Proportional to 15,055.95, 20,777.39 and 8,341.69

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Solution

The fourth proportional to 15,055.95, 20,777.39 and 8,341.69 is: 11,511.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,055.95 : 20,777.39 = 8,341.69 : x
  2. Step 2: Convert to fraction form
    15,055.95/20,777.39 = 8,341.69/x
  3. Step 3: Cross multiply
    15,055.95x = 20,777.39 × 8,341.69
  4. Step 4: Simplify right side
    15,055.95x = 173,318,546.39
  5. Step 5: Solve for x
    x = 173,318,546.39/15,055.95
  6. Step 6: Final answer
    x = 11,511.63

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.